a train travels 288km at a uniform speed. if the speed has been 4km per hour more it would have taken one hour less for the same journey. find the speed of train​

i am unable to solve this problem

step-by-step explanation:

in the attachment.   i didn't see your choices.   the word which means there is choices.

step-by-step explanation:

(x,y)

x tells you how much left or right you go from the origin

y tells you how much down or up you go from the origin

so for example (-3,2), you go left 3 and up twice. i denoted which of the ordered pairs is which in my graph.